EP2429358A1 - Article culinaire comportant une base dure en un materiau ceramique et/ou metallique et/ou polymere et un revetement antiadhesif a base de resine fluorocarbonee - Google Patents
Article culinaire comportant une base dure en un materiau ceramique et/ou metallique et/ou polymere et un revetement antiadhesif a base de resine fluorocarboneeInfo
- Publication number
- EP2429358A1 EP2429358A1 EP10728749A EP10728749A EP2429358A1 EP 2429358 A1 EP2429358 A1 EP 2429358A1 EP 10728749 A EP10728749 A EP 10728749A EP 10728749 A EP10728749 A EP 10728749A EP 2429358 A1 EP2429358 A1 EP 2429358A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hard base
- cap
- inner face
- aluminum
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 70
- 239000011248 coating agent Substances 0.000 title claims abstract description 69
- 239000011347 resin Substances 0.000 title claims abstract description 23
- 229920005989 resin Polymers 0.000 title claims abstract description 23
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000010411 cooking Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 title claims description 33
- 239000000919 ceramic Substances 0.000 title description 21
- 239000002861 polymer material Substances 0.000 title description 5
- 239000007769 metal material Substances 0.000 title description 4
- 235000013305 food Nutrition 0.000 claims abstract description 8
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 30
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 21
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 21
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 229910010293 ceramic material Inorganic materials 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920002312 polyamide-imide Polymers 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000007751 thermal spraying Methods 0.000 claims description 5
- 239000004962 Polyamide-imide Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 229920006393 polyether sulfone Polymers 0.000 claims description 4
- 229920001601 polyetherimide Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- BZPCMSSQHRAJCC-UHFFFAOYSA-N 1,2,3,3,4,4,5,5,5-nonafluoro-1-(1,2,3,3,4,4,5,5,5-nonafluoropent-1-enoxy)pent-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)C(F)(F)F BZPCMSSQHRAJCC-UHFFFAOYSA-N 0.000 claims description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims 2
- 229920002647 polyamide Polymers 0.000 claims 2
- 229910001018 Cast iron Inorganic materials 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000012764 mineral filler Substances 0.000 claims 1
- 239000012766 organic filler Substances 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000005299 abrasion Methods 0.000 description 16
- 210000003298 dental enamel Anatomy 0.000 description 15
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000009835 boiling Methods 0.000 description 8
- 239000008267 milk Substances 0.000 description 8
- 210000004080 milk Anatomy 0.000 description 8
- 235000013336 milk Nutrition 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 239000004696 Poly ether ether ketone Substances 0.000 description 5
- 229920002530 polyetherether ketone Polymers 0.000 description 5
- 229910000676 Si alloy Inorganic materials 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001643 poly(ether ketone) Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229920004695 VICTREX™ PEEK Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000010020 roller printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
- B05D5/086—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers having an anchoring layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/08—Flame spraying
- B05D1/10—Applying particulate materials
Definitions
- Culinary article comprising a hard base of a ceramic and / or metal and / or polymer material and a non-stick coating based on fluorocarbon resin
- the present invention generally relates to a culinary article, the bottom of which has a reinforced end face and provided with a non-stick coating, with high properties of scratch and abrasion resistance.
- the way of making the culinary article with its reinforced inner face is also concerned.
- the object of the present invention is to make a non-stick cookware coating based on a fluororesin such as PTFE, more resistant to scratching and abrasion.
- Culinary items with a non-stick coating based on fluorocarbon resin are classically favored by the market because they allow cooking without (or almost without) added grease while being easy maintenance.
- such articles have the disadvantage of low scratch resistance.
- the scratch resistance is a difficult property to characterize because it depends on several other properties such as the intrinsic hardness of the material, the elasticity, the abrasion resistance, and the coefficient of friction. As it is not only difficult to measure these properties separately, but also in combination, it is generally limited in practice, abrasion tests that only imperfectly reflect the culinary reality and actual cooking tests.
- Reinforced primaries actually provide significant improvements in abrasion resistance. But there are also impacts on the metal when cooking food such as pork chops, or when using metal spatulas.
- the inorganic hard bases make it possible to further improve abrasion resistance.
- the problem of impacts is virtually eliminated with such bases.
- it introduces new fragilities, such as a certain sensitivity to hydrolysis, and the near impossibility to report funds by a strike (for obtaining so-called funds for items compatible with induction heating, constituted of an aluminum cap and a grid made of fer ⁇ tique stainless steel. The striking allows the attachment of the grid on the outer face of the bottom of the cap).
- Hydrolysis resistance is required due to the porosity of the fluorocarbon resin (PTFE) release coating, given the need for good dishwasher resistance.
- PTFE fluorocarbon resin
- the enamel hard base which is in contact with stainless steel, must have a high softening point above the melting point of aluminum. It follows that the parboiling (typically at a temperature of at least 800 ° C) of this hard base leads to the separation of the different parts of the article. A hard enamel base is therefore not usable with multilayer products. For the reasons mentioned above, hard enamel bases are therefore far from being a fully adapted answer.
- hard metal or ceramic bases applied by plasma or by thermal spraying on a metal support. Typically, it is applied by means of an electric arc, a plasma torch or a flame, a hard base in the form of a continuous layer that covers the entire surface before coating the PTFE.
- These hard metal or ceramic bases are continuous and generally have a high thickness: they can therefore be applied only for already shaped articles. Indeed, the presence of such thick and continuous bases under the nonstick coating prevents any stamping or subsequent forming of the articles, which prohibits their application on flat disks.
- it is desired to provide the smoothest surface possible so as not to disturb the adhesion and the non-stick properties of the coating it follows that the application of such bases requires high processing times and a succession of tools and layers to create this smooth surface.
- the subject of the present invention is therefore a culinary article and a method of manufacturing such an article which overcomes the drawbacks of the prior art by forming, between the inner surface of the article and the nonstick coating, of a hard base of a ceramic and / or metallic and / or polymeric material, which is at least partially discontinuous at the fragile areas of the article.
- fragile zone of a culinary article is meant, within the meaning of the present invention, any part of the article that has been affected mechanically or thermally during the implementation of the initial support, generally in the form of disc or cap (especially by folding, stamping, drawing, welding or trimming).
- a particularly sensitive fragile area of a culinary article is the junction zone between the bottom of the cap and the side wall because it is the portion of the disc that is deformed (generally stamped) to create the side wall.
- Another fragile area of a culinary article is the top edge which is trimmed (rectified) to provide a smooth, flat edge.
- the present invention relates to a culinary article comprising a metal hollow cap which comprises a bottom and a side wall rising from the bottom and has at least one fragile zone, said cap having a concave inner face adapted to receive food and a convex outer surface, said inner surface, preferably sanded, blasted or brushed, being successively coated, from the cap, a hard base and a non-stick coating covering said hard base, the non-stick coating comprising at least one layer comprising at least one fluorocarbon resin, alone or in mixture with at least one thermostable bonding resin resistant to at least 200 0 C, this (these) resin (s) forming a sintered continuous network, characterized in that the hard base (3) is in the form of a layer which is at least less discontinuous at the location of the fragile zone (23), and in that said hard base is made of a ceramic material and / or metal and / or polymer, which is in the form of a superficial dispersion of drops of said material distributed substantially homogeneously on said
- the term “recovery ratio” means the ratio, expressed as a percentage, of that part of the surface to be covered by the support which is actually covered by the superficial dispersion of drops of material, on the surface to be covered by the discontinuous hard base.
- the term “surface dispersion of drops of ceramic and / or metal and / or polymer material” means a ceramic and / or metallic and / or discontinuous polymer layer which is in the divided state on a support (in the occurrence of the culinary article), so that the roughness of this layer is created by the scattered enamel drops.
- the metal hollow cap is advantageously a single-layer support made of aluminum, aluminum alloy, cast aluminum (or alloy of cast aluminum alloy, stainless steel, or cast steel.
- a hollow cap consisting of a multilayer support comprising from outside to inside the following layers ferritic stainless steel / aluminum / austenitic stainless steel or stainless steel / aluminum / copper / aluminum / austenitic stainless steel or a cap of aluminum foundry, aluminum or aluminum alloys lined with a stainless steel outer bottom.
- the enamel alloys of low alloy alloyed As aluminum alloys that can be used to make the cap of the culinary article 1, according to the invention, the enamel alloys of low alloy alloyed, and in particular:
- the 99% aluminum "pure” aluminum of the 1000 series and for example the 1050, 1100, 1200 alloys and
- the aluminum and silicon alloys of the 4000 series and for example the alloys, the aluminum and magnesium alloys of the 5000 series, and for example the 5005, 5050 and 5052 alloys, and the aluminum, silicon and magnesium alloys of the 6000 series, and for example the alloys 6053, 6060, 6063, 6101 and 6951, and the aluminum, iron and silicon alloys of the 8000 series, and for example the alloy 8128.
- aluminum-silicon alloys AS As foundry aluminum alloys that can be used to produce the support 2 (in this case a cap) of the culinary article 1, aluminum-silicon alloys AS, and preferably aluminum alloys, are recommended. -Silicon type AS7 to AS12, that is to say, AS alloys containing 7 to 12% silicon according to the old French standard NF AS 02-004.
- ferritic stainless steels of the type and austenitic stainless steels of the type are recommended.
- the at least partly discontinuous hard base of the article according to the invention is made of a ceramic material and / or metal and / or polymer.
- a hard base of ceramic material and / or metal it is preferable that the melting point of the material is greater than that of the metal or metal alloy in contact with the hard base.
- the hard base is an at least partially discontinuous layer consisting of a mixture of alumina and titanium dioxide.
- the hard base is an at least partly discontinuous layer made of a polymeric material, preferably polyamide-imide (PAI) and / or oxy-1,4-phenylene-1,4-oxy-1,4 phenylenecarbonyl-1,4-phenylene (PEEK).
- PAI polyamide-imide
- PEEK oxy-1,4-phenylene-1,4-oxy-1,4 phenylenecarbonyl-1,4-phenylene
- the hard base has a surface roughness Ra of between 2 ⁇ m and 12 ⁇ m, and preferably between 4 and 8 ⁇ m.
- surface roughness Ra is meant, in the sense of the present invention, the average arithmetic difference between the hollows and the peaks of the surface relative to the median (or mean) line, this difference being estimated according to the ISO 4287 standard. .
- the release coating contains at least one fluorocarbon resin alone or in admixture with a thermostable resin and resistant to at least 200 0 C, these resins forming after firing a sintered continuous network.
- the fluorocarbon resin is advantageously chosen from polytetrafluoroethylene (PTFE), the copolymer of tetrafluoroethylene and perfluoropropylvinyl ether (PFA), the copolymer of tetrafluoroethylene and hexafluoropropylene (FEP), and mixtures thereof (in particular a mixture of PTFE and PFA).
- PTFE polytetrafluoroethylene
- PFA perfluoropropylvinyl ether
- FEP hexafluoropropylene
- thermostable resin (s) resistant to at least 200 ° C. is (are) advantageously chosen from polyamide imides (PAI), polyether imides (PEI), polyimides (PI), polyetherketones (PEK), polyetheretherketones (PEEK), polyethersulfones (PES) and polyphenylene sulfides (PPS).
- PAI polyamide imides
- PEI polyether imides
- PI polyimides
- PEK polyetherketones
- PEEK polyetheretherketones
- PES polyethersulfones
- PPS polyphenylene sulfides
- the non-stick coating successively comprises, from the hard base, a layer of primer, and at least one topcoat.
- the primer layer may also advantageously comprise fillers and / or pigments.
- fillers usable in the primary composition of the culinary article 1 according to the invention mention may be made in particular of colloidal silica, mica flakes coated with T1O2, alumina, corundum, silicon carbide, quartz and their mixtures.
- pigments used in the primary composition of the culinary article 1 according to the invention there may be mentioned carbon black, iron oxides, and mixed oxides of cobalt and manganese, titanium dioxide.
- the present invention also relates to a method of manufacturing a culinary article comprising the following steps: a) a step of providing a metal support in disk form, comprising two opposite faces; b) a step of shaping said support to give it the shape of a cap, which comprises a bottom and a side wall rising from the bottom and has at least one fragile zone, and thus define an inner face concave adapted to receive food and a convex outer face; c) optionally, a step of treating the inner face of the support, to obtain a treated inner surface promoting the adhesion of a hard base on the support; d) a step of producing a hard base adhered to said inner face of the support; e) a step of producing a non-stick coating on said hard base formed in step d); said method being characterized in that step d) of producing the hard base comprises thermal spraying, on said inner face of a ceramic material and / or metal and / or polymer in powder form, so as to form on said inner face of the cap a layer
- the thermal spraying can be in particular a flame spraying, or a plasma spraying, or an arc-spray spray, without this list being limiting. However, it is preferably used for economic reasons and ease of implementation flame spraying.
- the material intended to be sprayed with the flame to serve as hard base may advantageously be in the form of a powder having a particle size of between 5 and 65 ⁇ m. This granulometry makes it possible to have a good flow in the hopper of feeding, limit the dust during the manipulations and presents sufficiently little thermal inertia to be able to melt completely during the passage in the flame.
- step d) of producing the hard base is preceded by a step of preheating said support or said cap according to the step b) shaping is performed before the realization d) of the hard base or after completion e) of said non-stick coating.
- This preheating is adapted to the nature of the support and the projected material. Preheating the support avoids a sudden cooling of the molten drop likely to limit the adhesion.
- step c) of producing the release coating comprises a step of depositing, on said hard base, at least one fluorocarbon resin composition, and then a step sintering, preferably between 380 0 C and 450 0 C.
- FIG. 1 represents a schematic sectional view of a culinary article according to FIG. the invention according to a first variant embodiment
- - Figure 2 shows a schematic sectional view of a culinary article according to the invention according to a second embodiment
- Figure 3 shows a schematic sectional view of a culinary article according to the invention according to a third embodiment.
- FIGS. 1 and 2 are identical elements shown in FIGS. 1 and 2 are identified by identical reference numerals.
- FIGS. 1 to 3 show, as an example of a culinary article according to the invention, a frying pan
- the support 2 comprises an inner face 24 which is the side facing the food side likely to be received in the pan 1, and a face 25 which is intended to be disposed towards an external heat source.
- the inner face 24 is successively coated, from the support 2, a hard base 3 according to the present invention, and a non-stick coating 4 which comprises successively from the hard base 3 a primer layer 41 hooking and two finishing layers 42, 43.
- FIGS. 1 to 3 also show that the outer face 22 of the support 2 is advantageously coated by an outer cover covering 6 (for example enamel), the thickness of this covering covering 6 being conventionally between 20 ⁇ m and 300 ⁇ m.
- the hard base 3 is entirely discontinuous (over the entire interior surface 24 of the support 2) comprising a surface dispersion of drops 31 of a ceramic and / or metallic material and / or polymer (as defined above). These drops are solidified and have a mean size of between 2 ⁇ m and 50 ⁇ m and are homogeneously distributed on the surface of the inner face 21, with a coating rate of the inner face of between 40 and 80%, with a density per unit area included. between 300 drops / mm 2 and 2000 drops / mm 2 .
- the drops of the ceramic material and / or metal and / or polymer 31 dispersed on the surface of the inner face 24 are embedded in the primer layer 41 of the non-stick coating 4, so as to allow the attachment of the primer layer at the hard base 3.
- a hard base 3 leads to an increased mechanical reinforcement of the non-stick coating 4, particularly in terms of hardness and adhesion to the underlying hard base 3.
- the mechanical reinforcement of the non-stick coating 4 is increased both by the fillers in the primer layer 41 and the dispersion of drops 31 of the hard base 3 which play a role similar to that of a reinforcing filler in the interpenetration zone of the two layers 3, 41.
- the hard base 3 is a layer of ceramic and / or metallic and / or continuous polymer material at the bottom 21 and discontinuous at the junction zone 23 between the bottom 21 and the side walls 22, and on the side walls 22.
- Such a combination can be advantageously obtained by adjusting the spraying times according to the zones intended to be covered with a deposit that is either continuous or discontinuous, that is to say having a slow displacement of the torch in the non-fragile zones ( to form a continuous hard base zone) and rapid displacement in fragile areas (to form a discontinuous hard base zone).
- the hard base 3 is a layer of ceramic and / or metallic and / or continuous polymer material at the bottom 21 and at the junction zone 23 between the bottom 21 and the side walls 22, and discontinuous on the side walls 22.
- Temperature of the support during the application of the hard base equal to or greater than the ambient temperature (of the order of 20-25 ° C.) and preferably equal to or greater than 200 ° C. for a ceramic powder
- the abrasion resistance of the non-stick coating formed by subjecting it to the action of a green SCOTCH BRITE abrasive pad is evaluated.
- the abrasion resistance of the coating is estimated quantitatively by the number of buffer passes necessary to create the first scratch (corresponding to the appearance of the constituent metal of the support).
- the anti-adhesion is measured according to the more or less easy cleaning of the carbonized milk.
- the rating is as follows: • 100: means that the carbonized milk film is removed completely by simply applying a water jet from the kitchen faucet;
- Adhesion of the release coating to the hard base is also evaluated. For this, a grid adherence test is carried out according to the ISO 2409 standard, followed by immersion of the article for 9 hours (by three cycles of three hours in boiling water). Then, it is observed whether or not the non-stick coating has a detachment.
- a 3003 aluminum disc 330 mm in diameter is degreased and then brushed to obtain a Ra roughness of 1.5 microns. This disc is preheated to a temperature of between 150 ° C. and 200 ° C.
- a ceramic powder consisting of a mixture of alumina / titanium dioxide (87% of alumina and 13% of titanium dioxide) is applied by means of the torch to obtain a discontinuous deposit over the entire surface of 1.5 g and 4 ⁇ m roughness.
- This disk thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the disk thus prepared is stamped to give a cap with a bottom diameter of 26 cm, internally coated with PTFE (non-stick coating). This coating has no cracks or loss of adhesion.
- An abrasion test is also carried out by "back and forth" passages of an abrasive pad. After 20000 passes, the coating does not show scratches to the metal and its anti-adhesion measured by the cleaning of the carbonized milk is 50.
- Example 2 Culinary article according to the invention with a discontinuous hard ceramic base
- An aluminum cap 3003 260 mm in diameter is degreased and sanded to obtain a roughness Ra of 2 microns. This cap is preheated to a temperature between 150 0 C and 200 0 C.
- a ceramic powder of alumina / titanium dioxide type (87% / 13%) is applied by means of the torch. respectively) to obtain a discontinuous deposit of 0.9 g and roughness Ra 3.5 ⁇ m.
- the cap thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the coating is sintered at a temperature of 415 ° C for 7 minutes.
- the coating does not exhibit cracks or loss of adhesion.
- the adhesion measured by means of a grid is equal to 100%.
- This type of cap is also tested for its resistance in the dishwasher: after 20 cycles of washing, the coating shows no cracks or blisters.
- This type of cap is also subjected to the same abrasion test as in Example 1. After 20000 passages, the coating does not show scratches on the metal and its anti-adhesion measured by the cleaning of the carbonized milk is 100.
- Multilayer culinary article according to the invention with a discontinuous hard ceramic base
- This cap is preheated to a temperature between 150 0 C and 200 0 C.
- a ceramic powder of the alumina / titanium dioxide type (87% / 13% respectively) is applied by means of the torch in order to obtain a discontinuous deposit of 1.2 g and a Ra roughness of 3 ⁇ m. After cooling, this cap thus prepared is successively covered with a primer layer and a PTFE-based topcoat. The coating is sintered at a temperature of 415 ° C for 7 minutes and then cooled. After cooling, the coating does not exhibit cracks or loss of adhesion.
- This type of cap is also subjected to the same abrasion test as in Examples 1 and 2. After 20000 passes, the coating does not show scratches on the metal and its anti-adhesion measured by the cleaning of the carbonized milk is 100.
- Example 4 Control multilayer food item with discontinuous enamel hard base
- a spray gun is applied enamel slip for steel with a softening point of 720 ° C. in order to obtain a discontinuous deposit of 1.2 g and a roughness of 3 ⁇ m.
- This cap is baked at 750 0 C to obtain the gelation of the enamel. At this temperature, the complete delamination of the multilayer cap is observed.
- An aluminum disk 3003 330 mm in diameter is degreased and then brushed to obtain a roughness of 1.5 microns.
- a ceramic of the alumina / titanium dioxide type (87% / 13% respectively) is applied by means of a torch in order to obtain a continuous deposit of 8 g and a roughness of 8 ⁇ m on the entire cap, that is to say say on non-fragile and fragile areas.
- This disk thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the disc After stoving at 415 ° C., the disc is stamped to give a cap of diameter 26 cm coated internally. At the stamping, a break in the hard base is observed in the folding zones and the coating has numerous cracks and adhesion losses.
- An aluminum cap 3003 260 mm in diameter is degreased and sanded to obtain a surface roughness Ra of 2 microns. This cap is preheated to 150 ° C.
- a powder of aluminum alloy 4917 is applied by means of the torch to obtain a discontinuous deposit of 1 g and a 3.5 ⁇ m roughness.
- the cap thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the coating is sintered at a temperature of 415 ° C for 7 minutes.
- the coating does not exhibit cracks or loss of adhesion.
- the adhesion measured by means of a grid is equal to 100%.
- This type of cap is also tested for its resistance in the dishwasher: after 20 cycles of washing, the coating shows no cracks or blisters.
- Example 7 This type of cap is also subjected to the same abrasion test as in Example 1. After 20000 passages, the coating does not show scratches on the metal and its anti-adhesion measured by the cleaning of the carbonized milk is 100.
- Example 7
- An aluminum cap 3003 260 mm in diameter is degreased and sanded to obtain a surface roughness Ra of 2 microns. This cap is preheated to 200 ° C.
- a 304 stainless steel powder LHD (particle size +150 0.6%, -45 43%: particle size obtained by sieving giving 0.6% of particles greater than 150 ⁇ m and 43% to less than 45 ⁇ m) containing 11.6 is applied by means of the torch.
- % Ni and 19% Cr to obtain a discontinuous deposit of 1.1 g and Ra roughness of 3.2 microns.
- the cap thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the coating is sintered at a temperature of 415 ° C for 7 minutes.
- the coating does not exhibit cracks or loss of adhesion.
- the adhesion measured by means of a grid is equal to 100%.
- This type of cap is also tested for its resistance in the dishwasher: after 20 cycles of washing, the coating shows no cracks or blisters.
- This type of cap is also subjected to the same abrasion test as in Example 1. After 20000 passages, the coating does not show any scratches on the metal and its anti-adhesion measured by the cleaning of the carbonized milk is
- a 3003 aluminum disc 330 mm in diameter is degreased and then brushed to obtain a Ra roughness of 1.5 microns. This disc is preheated to a temperature of 150 ° C.
- a PEEK powder is applied by means of the torch
- This disk thus prepared is successively covered with a primer layer and a PTFE-based topcoat.
- the disk thus prepared is stamped to give a cap with a bottom diameter of 26 cm, internally coated with PTFE (non-stick coating). This coating has no cracks or loss of adhesion.
- An abrasion test is also carried out by "back and forth" passages of an abrasive pad. After 15,000 passages, the coating does not show scratches to the metal and its anti-adhesion measured by the cleaning of the carbonized milk is 50.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
- Laminated Bodies (AREA)
- Frying-Pans Or Fryers (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0953255A FR2945428B1 (fr) | 2009-05-15 | 2009-05-15 | Article culinaire comportant une base dure en un materiau ceramique et/ou metallique et/ou polymere et un revetement antiadhesif a base de resine fluorocarbonee. |
PCT/FR2010/050924 WO2010130954A1 (fr) | 2009-05-15 | 2010-05-12 | Article culinaire comportant une base dure en un materiau ceramique et/ou metallique et/ou polymere et un revetement antiadhesif a base de resine fluorocarbonee |
Publications (2)
Publication Number | Publication Date |
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EP2429358A1 true EP2429358A1 (fr) | 2012-03-21 |
EP2429358B1 EP2429358B1 (fr) | 2013-06-05 |
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EP10728749.2A Active EP2429358B1 (fr) | 2009-05-15 | 2010-05-12 | Article culinaire comportant une base dure en un matériau céramique et/ou métallique et/ou polymère et un revêtement antiadhésif à base de résine fluorocarbonée |
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US (2) | US10264915B2 (fr) |
EP (1) | EP2429358B1 (fr) |
JP (2) | JP2012526580A (fr) |
KR (2) | KR20170122828A (fr) |
CN (1) | CN102421340B (fr) |
BR (1) | BRPI1014477B1 (fr) |
CO (1) | CO6470888A2 (fr) |
ES (1) | ES2419667T3 (fr) |
FR (1) | FR2945428B1 (fr) |
RU (1) | RU2516016C2 (fr) |
WO (1) | WO2010130954A1 (fr) |
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FR2979215B1 (fr) * | 2011-08-26 | 2013-08-23 | Seb Sa | Article culinaire comportant un revetement antiadhesif a base de resine fluorocarbonee presentant des proprietes ameliorees d'adherence au support |
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2009
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2010
- 2010-05-12 KR KR1020177028539A patent/KR20170122828A/ko not_active Application Discontinuation
- 2010-05-12 CN CN201080020636.2A patent/CN102421340B/zh active Active
- 2010-05-12 US US13/320,702 patent/US10264915B2/en active Active
- 2010-05-12 WO PCT/FR2010/050924 patent/WO2010130954A1/fr active Application Filing
- 2010-05-12 ES ES10728749T patent/ES2419667T3/es active Active
- 2010-05-12 KR KR1020117029922A patent/KR102022121B1/ko active IP Right Grant
- 2010-05-12 JP JP2012510348A patent/JP2012526580A/ja active Pending
- 2010-05-12 EP EP10728749.2A patent/EP2429358B1/fr active Active
- 2010-05-12 BR BRPI1014477A patent/BRPI1014477B1/pt active IP Right Grant
- 2010-05-12 RU RU2011149996/12A patent/RU2516016C2/ru active
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2011
- 2011-12-13 CO CO11171434A patent/CO6470888A2/es active IP Right Grant
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- 2015-04-02 JP JP2015076205A patent/JP2015147067A/ja active Pending
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2019
- 2019-01-28 US US16/259,433 patent/US10722069B2/en active Active
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US10264915B2 (en) | 2019-04-23 |
FR2945428A1 (fr) | 2010-11-19 |
US20120132655A1 (en) | 2012-05-31 |
RU2011149996A (ru) | 2013-06-20 |
KR20170122828A (ko) | 2017-11-06 |
KR20120018357A (ko) | 2012-03-02 |
CO6470888A2 (es) | 2012-06-29 |
KR102022121B1 (ko) | 2019-09-17 |
EP2429358B1 (fr) | 2013-06-05 |
BRPI1014477B1 (pt) | 2020-04-22 |
JP2012526580A (ja) | 2012-11-01 |
JP2015147067A (ja) | 2015-08-20 |
CN102421340A (zh) | 2012-04-18 |
ES2419667T3 (es) | 2013-08-21 |
WO2010130954A1 (fr) | 2010-11-18 |
US10722069B2 (en) | 2020-07-28 |
US20190159626A1 (en) | 2019-05-30 |
CN102421340B (zh) | 2015-03-04 |
BRPI1014477A2 (pt) | 2016-04-05 |
FR2945428B1 (fr) | 2011-06-10 |
RU2516016C2 (ru) | 2014-05-20 |
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